S. Nurhayati and I. Maria Husain, “Peran Orang Tua dalam Meningkatkan Kemampuan Kognitif Anak Usia Dini di Masa Pandemi Covid 19 melalui Eksplorasi Mainan yang Ada di Rumah: The Role of Parents in Improving Early Childhood Cognitive Skills during the Covid 19 Pandemic through Exploration of Toys at Home”, tila, vol. 1, no. 2, pp. 23-39, Jan. 2022.